Improvement in machinery for forming counter-stiffeners for boots and shoes



W. C. WISE.

MACHINERY FOR FORMING COUNTER-STIFFENERS FOR BOOTS AND SHOES.

No.180,978 Patented Aug.8, 1876.

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fi 7 L V W M 7 N. PETERS, PHOTOwLlTHDGRAPPER, WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

WILLIAM C. WISE, OF CHELSEA, MASSACHUSETTS.

IMPROVEMENT INMACHINERY FOR FORMING COUNTER-STIFFENERS FOR BOOTS AND SHOES.

Specification forming part of Letters Patent No. 180,978, dated August 8, 1876; application filed April 7, 1876.

To all whom it may concern:

Be it knownthat 1, WILLIAM G. WISE, of

Chelsea, in the county of Suffolk and State of Massachusetts, have invented an Improved Machine for Forming Heel-Stiffeners, of which the following is a specification:

This invention relates to a machine for forming or molding heel or counter stifleners of india-rnbber compound, leather-board, or leather for boots and shoes; and consists in a steam-heated plat-en by which one part of the mold is carried and heated, in combination with toggle-jointed arms, and mechanism for operating them, as hereinafter described, whereby the platen is raised and powerful pressure is produced to properly mold several stiffeners at each operation of the press. v

Figure l is an end view of my machine; Fig. 2, a transverse section, taken through Fig. 1 on line :0 ac,- and Fig. 3 is a side view.

The end frames of 'the machine are connected with a bottom piece, I), and at top with a hollow steam-box or bed-piece, 0, having its ends placed between lugs 01 e, and the screws f enter the ends of the bed 0 through elongated screw-holes, to permit the adjustment of the bed parallel with the. surface of the platen,'suitable wedge-blocks being used be tween the upper side of the bed-piece and the lugs d. Stay-rods g g prevent the bed-piece from springing at its center. The rock-shaft h, supported in suitable bearin gs i, has, at its end, a sector, j, with worm-teeth 7c, engaged by a worm-gear, l, on a shaft, m, this worm and sector being adapted to rock the shaft h, which is provided with arms 02, connected by links 0 with the toggle-arms p 19 joined to the bottom piece I), and to the hollow steamheated platen g, which is raised and lowered by the action of the rock-shaft and togglearms.

The bed-piece c and movable platen q are heated by steam through pipes connected with any suitable steam-chamber, and the steam may pass from one to the other through a flexible connecting-pipe joined with the bed and platen at r 1',- but for this purpose-I prefer to use along metallic pipe, as shown in dotted lines, Fig. 3. This metallic pipe is of such length as to spring sufficiently to permit the platen to rise and fall as far as necessary.

For molding the stifi'eners from rubber compound, the platen aud molds are heated sufficiently to vulcauize the rubber; but when stiffeners of leather or leather-board are being formed, the heat will be much less in degree.

The metallic molds s t-one attached to the bed-piece c, and the other to the platen-are concave and convex, as usual, to form a counter of the desired shape, and are grooved on their backs to receive a dovetailed rib, a, by which the molds are retained in position.

A sector like is, and a worm to operate it, may be placed at each end of the rock-shaft, and instead of using the links, I may use a cam to press against the togglearms to straighten them, and the weight of the platen, assisted or not by a spring, will bend the toggle-arms.

I may use a spring under each end of the platen that will be compressed when the platen is drawn down, and then, when it is desired to lift the platen, the springs will assist its upward movement, and make it easier for the shaft to straighten the togglearms.

The molds have frequently to be removed to be cleansed, and this is easily done by reason of their connection with the bed and platen through the dovetailed rib m.

The molds on the bed-piece will be connected each with a short transverse dovetailed rib. (See dotted lines at left of Fig. 3.)

When the molds are separated, the stifieners should be left in the concave molds, and to insure their remaining there, a springcatch is attached to each mold, and its end fits over the upper end of the stiffener at its back.

I claim- 1. In a machine for forming counter-stifl'eners for boots and shoes, the combination of the heated bed-plate and platen and molds and toggle-arms with a rock-shaft, sector, In testimony whereof I have signed my and worm-gear, and shaft to move the sector name to this specification in the presence of and rock-shaft, substagtiallly as degcrilged. two subscribing witnesses.

2. The steam-heate p aten an ri m, in

combination with the mold t, grooved to em- WILLIAM CROSBY WISE brace the rib to permit the attachment and Witnesses: removal of the molds, substantially as de- G. W. GREGORY, scribed. S. B KIDDER. 

